One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(5,6,10,9)(7,12,8,11)(13,14)(15,23)(16,18)(17,21)(19,22)(20,26)(24,28)(25,27)(5,7,10,8)(6,11,9,12)(13,15,17,24,19,25,18,26)(14,20,16,27,22,28,21,23)(2,4)(5,6,10,9)(7,12,8,11)(13,16,18,14,19,21,17,22)(15,23,26,28,25,27,24,20)(5,8,10,7)(6,11,9,12)(13,17,19,18)(14,21,22,16)(15,24,25,26)(20,23,28,27)(5,9,10,6)(7,12,8,11)(15,25)(20,28)(23,27)(24,26)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.